The company's next product will provide objective brain state data, much like a CGM provides constant glucose readings. This allows for data-driven mental health treatment, moving beyond subjective checklists and enabling closed-loop therapies with neuromodulators, fundamentally changing diagnostics and care.

Stimulating the dorsolateral prefrontal cortex with TMS induces an electrical current that travels through the vagus nerve to the heart, causing a measurable deceleration. This provides direct physical evidence of the neural circuit connecting mood regulation centers to cardiac function, moving the mind-heart connection beyond metaphor.

Moving beyond Freudian theory and the "chemical imbalance" hypothesis, "Psychiatry 3.0" views mental illness as a problem of brain circuitry. Treatments like TMS and psychedelics show that recalibrating these circuits can rapidly resolve symptoms, framing conditions like depression as correctable rather than a permanent deficit.

While public discourse treats vagus nerve stimulation solely as a tool for calming down, most vagal pathways are actually excitatory. Implantable stimulators under the skin of the neck are actively used in clinical neuroscience to treat severe depression by stimulating vagal fibers. This stimulation immediately elevates alertness, overcoming depressive lethargy and shifting patient cognitive state in real time.

Science Corp. developed a retinal prosthesis with a key innovation: the implant is made of tiny solar panels. It is powered entirely by the infrared image projected onto it from a pair of glasses, eliminating the need for internal batteries or external wires, a major hurdle for brain-computer interfaces.

While companies like Neuralink popularize assistive BCIs for controlling external devices, a different segment is focused on therapeutic applications. Companies like InBrain aim not to control computers but to use high-resolution interfaces to directly heal or modulate neural circuits for treating diseases.

Unlike conventional deep brain stimulation that delivers a constant current, adaptive DBS uses a bidirectional system. It senses neural activity, compares it to a threshold, and adjusts the stimulation up or down accordingly, creating a personalized therapy that responds to the patient's real-time brain state.

Future consumer neuro-enhancement will likely avoid invasive skull drilling by combining harmless viral vectors with external wearable devices. Adeno-associated viruses can deliver genetic ion channels into specific neural populations. Once integrated, wearable hardware like caps emitting deep-penetrating light or focused ultrasound can selectively modulate those sensitized neurons. This enables fine-grained titration of focus and motivation without intracranial implants, provided proper regulatory and safety boundaries exist.

By stimulating the prefrontal cortex, TMS restores the brain's "executive control," allowing patients to engage with and understand therapeutic concepts they previously couldn't grasp. This suggests neuromodulation can be a preparatory step to enhance the effectiveness of traditional talk therapy for severely depressed individuals.